Day 5 Connective Tissues/Cartilage

Question 1

Functions of Connective Tissue (6)

Answer 1

1. Establish Framework for human body
2. Transport Fluid and dissolved materials
3. Protection for delicate organs
4. Supporting, surrounding, interconnecting
5. Store energy/Store Calcium
6. Protect from invasion from micro-organisms

Question 2

3 types of fibres found in extracellular connective tissue

Answer 2

Elastin, Reticulin, Collagen

Question 3

Elastin is good for:

Answer 3

pliability, elasticity, return to shape

Question 4

Collagen is good for:

Answer 4

Strength

Question 5

Fibroblast cells secret

Answer 5

Ground substance, connective tissue fibres

Question 6

3 types of connective tissue

Answer 6

Connective tissue proper, fluid connective tissue, supporting connective tissue

Question 7

Types of Loose CT

Answer 7

Areolar, Adipose, Reticular

Question 8

Types of Dense CT

Answer 8

Regular, Irregular

Question 9

Types of Fluid CT

Answer 9

Blood, Lymph

Question 10

Types of Supporting CT

Answer 10

cartilage, bone

Question 11

Types of Cartilage

Answer 11

Hyaline, Elastic, Fibrous

Question 12

Areolar CT : what type, what cells is it made up, where is it found, function

Answer 12

Loose CT, made of all cells founding CT, found in dermis, hypodermic, digestive, respiratory, between muscles, around blood vessels and joints. Cushions and supports with movement

Question 13

Adipose CT: what type, what cells is it made up, where is it found, function

Answer 13

Loose, CT, made of adipocytes, collagen, elastin
Found: beneath skin at abdomen, buttocks, treats, kidneys, around other organs,
Function: absorb shock, insulates, store energy

Question 14

Reticular CT: what type, what cells is it made up, where is it found, function

Answer 14

Loose CT made of reticular fibres
Found: liver, kidney, spleen
Function: supporting framework, light but strong

Question 15

Dense Irregular CT: contain what, where is it found, function

Answer 15

Collagen and elastin
Found: capsule of joints and visceral organs, dermis of skin, periostea and perichondrium, nerve and muscle sheaths
Function: resist force in many directions, prevent over expansion of organs

Question 16

Dense Regular CT: contain what, where is it found, function

Answer 16

Collagen and elastin
Found: tendons and ligaments, aponeurosis
Function: firm attachment, transmit force, reduce friction between muscles, hold force in one direction

Question 17

Elastic Tissue: contain what, where is it found, function

Answer 17

Elastin and collagen
Found: between vertebrae, blood vessels:
Function: allows stretch and recoil

Question 18

What is a perichondrium? and what are its two layers

Answer 18

outer lining of cartilage (except not on hyaline in synovial joints)
has two layers: outer layer for mechanical support/connection to other structures
inner layers for growth and maintenance

Question 19

how does cartilage get nourishment?

Answer 19

it is avascular so the perichondrium provides support through diffusion

Question 20

Hyaline Cartilage: found where and function and what fibre types

Answer 20

Found: between ribs and sternum, synovial joints, supports larynx, trachea,
Functions: strong, flexible supports, reduce friction
Collagen mostly

Question 21

Elastic Cartilage: found where and function and what fibre type

Answer 21

elastin mostly
Found: auricle of ear, epiglottis, larynx
Function: tolerate distortion, return to shape

Question 22

Fibrocartilage: found where and function and what fibre type

Answer 22

collagen mostly
Found: intervertebral discs, pads in knee joint, pubic symphysis
Function: shock absorption, prevent bone to bone contact

Question 23

Appositional cartilage growth - how does it happen?

Answer 23

stem cells in perichondrium divide and chondroblasts are formed, chondroblasts move in matrix where they secrete more matrix, chondroblasts mature into chondrocytes

Question 24

Interstitial Growth how does it happen?

Answer 24

within the matrix. chondrocytes undergo division within. a lacuna surrounded by matrix, daughter cells secrete more matrix, expanding tissue from within.